MacBooks forum


macbook a1286 15" 2008/2009 logic board repairing question

by Richiehard / September 8, 2017 6:42 AM PDT

hi there,

i'm trying to repair a macbook a1286 (i understood the model looking pictures online cause the serial was scratched away from the cover....the logic board just say 2009)
anyway, it won't turn on
if i'm going to measure on the power regulation i can see 3.3V but i do not have 5V
trying to bypass the thing, i discover that if i get rid on one or two power MOSes suddenly i can see 5V, but it won't turn anyway
i'm doing all of this without schematics cause i can't find any

please help me out


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All Answers

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This means you should find them like Louis Rossmann
by R. Proffitt Forum moderator / September 8, 2017 7:00 AM PDT
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i don't know how to find schematics, should i ask him ?
by Richiehard / September 8, 2017 7:14 AM PDT


can you help in this way ? do you have some hint to give me in where to fin the logic board schematic ?


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Not really. I will share
by R. Proffitt Forum moderator / September 8, 2017 7:17 AM PDT

That I use google to hunt for things. But the person I noted is the king of board repair.

His fees are reasonable.

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i don't think is going to share
by Richiehard / September 8, 2017 7:20 AM PDT

i mean, the guy is running a business with repairing
i'm not sure is going to share schematics
i'm trying to figure out how to contact him in private to not generate a list of peaople asking for schematics etc

hope i can find the way

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My choice would be for him to fix my Apple.
by R. Proffitt Forum moderator / September 8, 2017 7:37 AM PDT

And I'm am electronics designer that has worked with hybrid electronics to PCBs and more.

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i see
by Richiehard / September 8, 2017 8:20 AM PDT

but you know
it's not mine, i got it froma bundle and i just would like to try myself (keep learning is important)
furthermore, sending him the laptop to NYC from italy and back plus fixing would cost me a lot + i have to buy the battery and the power charger too
since is a 2008/2009 macbook, in this way, it wont worth the shot

but still thanks for the advice. I wrote a comment under the video, hope he will reply

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I'd google him.
by R. Proffitt Forum moderator / September 8, 2017 8:23 AM PDT
In reply to: i see

And post in his YouTube channel.

Even the 2008/9 model might be a few hundred used on the usual outlets.

To me it's the old "is this worth doing?" question. You can google just like me to see if there are schematics but look at all the work he put into collecting schematics and more. It's not like Apple made it easy or he asked everyone for this.

But he's sort of a cause celeb and if I could help him I would.

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i agree
by Richiehard / September 8, 2017 8:50 AM PDT
In reply to: I'd google him.

my i have to make the calculation with my pocket, not his

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My take on this is more along the lines of
by R. Proffitt Forum moderator / September 8, 2017 8:56 AM PDT
In reply to: i agree

My pocket cost for him or the Apple repair center cost.

Now if you can pull off the repair, go for it but a few get upset that others don't have this information or feel entitled to the information. I don't know why folk are using the entitled card so often today as we've never had it so good. Before the internet and google, this information was never available outside of known channels like the maker or Sam's Foto Facts.

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i agree with you
by Richiehard / September 8, 2017 9:02 AM PDT

but if i can find the schematic i have enough skills to make it out
i can understand you point but i'm starting thinking you get the stake from him to make him advertisement ahahahaha

thanks a lot for your suggestions. If you have time and find something for me i will appreciate

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No stake or such here.
by R. Proffitt Forum moderator / September 8, 2017 9:11 AM PDT
In reply to: i agree with you

I'm sharing who I think is really on top of their game today that can beat the usual Apple repair center for machines like yours. He has a lot of videos on repairs which is beyond what you can expect from repair centers today.

If you have checked out my other posts you may find I like Shopjimmy's HDTV repair videos and others by say this fellow:

Good hunting.

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of course i was kidding
by Richiehard / September 8, 2017 9:19 AM PDT
In reply to: No stake or such here.

i will take into consideration what you suggest me and make some calculations


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by R. Proffitt Forum moderator / September 8, 2017 9:40 AM PDT

Folk have tried to say that I'm on the take but if you check out my advice it's all about getting the machines fixed without emptying the wallet as well as connecting folk with the best connections and sources I know.

It's really tough to justify repair when working core 2 duo macbooks are hovering around 200USD at

I know of someone that had a heavily damaged old apple and they had a rough time accepting it was time to move off it. After noting used models near the 200 mark they bought one and slipped the HDD from the bad mac into the working model and in minutes they were back to where they were before the disaster.

Could they have salvaged the old apple? Maybe but this was the sure fire, will cost this much and done answer.

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got the point
by Richiehard / September 8, 2017 10:17 AM PDT
In reply to: Thanks.

i don't know if you have it on your contry but in italy we just stay "it would be a metter of style exercize" nothing more, that's why i would like to fix it myself in my spare time

anyway maybe i found a pdf with the right model just googling better

i hope someone else has some other links to help me out

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one last question
by Richiehard / September 9, 2017 1:57 AM PDT
In reply to: Thanks.

looks like i found out the schematic
i see from the board and have confirmation from the video that the guy is using a software to have access to the serigraphic map, not present on the board
Do you know the name of the program and how it works ?


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No and yes.
by R. Proffitt Forum moderator / September 9, 2017 7:13 AM PDT
In reply to: one last question

Do you know the name of the program and how it works ?

I don't know what he uses but have used circuit editors and their matching printed circuit board viewers. These are not cheap and why I don't have such at home but only on the job.

Sorry if this upsets you but the cost involved would be more than a new laptop. I think the last time we shopped this software suite it was just over 10K USD.

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